To the todd



5 Sheets-Sheet 1. J. T. TODD.

(No'ModeL) RECORDER.

Patented June 13, 1898.

WITNESSES I R Z 5 Sheets-Sheet 2. J. T. TODD.

(No Model.)

RECORDER.

No. 499,610. Patented June 13, 1893.

INVENTOH ATTORNEYS.

(No Model.) 5 Sheets-Sheet 3. J. T. TODD.

RECORDER.

No. 499,610. Patented June 13, 1893.

A TTOHNEYS.

THE Mourns PEYERS co mormumu, wAsuluumm o. c.

5 Sheets-Sheet 4. J. T. TODD.

(No Model.)

RECORDER.

No. 499,610. Patented June 13, 1893.

INVENTOI? W/TNESSES ATTORNEYS.

(No Model.) 5 Sheets-Sheet 5.

J. T. TODD. RECORDER.

No. 499,610. Patented June 13, 1893.

A TTOHNE YS.

/NVENTOH UNITED STATES PATENT OFFICE.

JOHN T. TODD, OF NElVMAN, ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS,TO THE TODD APPLEGATE COMPANY, OF CHICAGO, ILLINOIS.

RECORDER.

SPECIFICATION forming part of Letters Patent No. 499,610, dated June 13,1893.

I Application filed May 24,1892. Serial No. 434,184. (No model.)

To all whom it may concern.-

Be it known that 1, JOHN T. TODD, of Newman, in the county of Douglasand State of Illinois, have invented a new and Improved Telemeter, ofwhich the following is a full, clear, and exact description.

Theobject of the invention is to provide a new and improved telemeterdesigned to automatically record for any desired length of time and atregular predetermined intervals the state or variations of any force,whether the variations are of temperature, pressure, or other changingagent occurring in any 10- cality, machine, or apparatus.

The invention consists of certain parts and details and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a plan view of the invention. Fig. 2 is a side elevation ofthe same. Fig. 3 is a transverse section of the same on the line 3-3 inFigs. 1 and 2. Fig. 4 is a perspective view of the recording receiverand adjacent devices. Fig. 5 is a sectional front View of part of themotor for actuating the recording receiver. Fig. 6 is a perspctive viewof the tripping mechanism of the same. Fig. 7 is a like view of thereleasing mechanism for the tripping device. Fig. 8 is a sectional sideelevation of the platen for the recording receiver. Fig. 9 is aperspective view of the mechanism for actuating the type wheelcontrolled from one of the electro-magnets. Fig. 10 is a perspectiveview of the mechanism for shifting the date type wheel. Fig. 11 is atransverse section of part of the type wheel and part of the device forshifting the date wheel. Fig. 12 is a side elevation of the main crankarm for the receiver. Fig. 13 is a side elevation of the paper feed.Fig. 14: is an enlarged plan view of part of the type Wheels; and Fig.15 is a plan of the transmitter used in connection with theelectro-magnets for actuating one set of type wheels.

The improved telemeter is provided with a recordin greceiver comprisinga series of type wheels A, B, and C, arranged alongside each thetwenty-four hours of the day.

other and mounted to rotate loosely on a shaft- D supported on posts Dand D erected on the base D on which the entire machine is mounted. Thetype wheels are preferably of the same diameter and carry on theirperipheries type characters, see Fig. 14, of which the type characterson the wheel A indicate the days of the week arranged successively, thusmaking the wheel A the date wheel, while the wheel B is the time wheeland carries on its periphery type characters indicating the time of theday, preferably quarter hours for all The type wheel C is provided withtype characters corresponding to the nature of the force or agent forwhich the recorder is used, usually, however, successive numeralsindicating, say degrees, if variations of temperature are to berecorded, or feet for the height of the water in the boiler, or poundsfor the pressure in the boiler, &c. The type characters of the severalwheels stand in alignment at the bottoms of the wheels, so that animpression on paper taken at this point reads the day, the quarter hourof that day, and the temperature, pressure, &c., of the force or agentat that particular time.

The wheel A is shifted the distance between two type characters by thetime wheel B on the completion of every revolution of the lat-- ter,which time wheel is shifted every quarter hour by a spring actuatedgearing or motor E tripped every quarter hour by a clockwork F of anyapproved construction.

The outer or force recording type wheel C is actuated by two pairs ofelectro-magnets G, G controlled by means of a transmitter H, preferablyof the construction illustrated in Fig. 15 and hereinafter described.

The impression on paper is taken at or from the bottoms of the typewheels A, B, and C, by a suitable platen or impression I hereinaftermore fully described.

As illustrated in Figs. 1, 2, and 3, the electro-magnets G G areemployed for actuating the type wheels C and in turn are actuated fromthe transmitter, according to the rise or fall of the temperature, orthe rise or fall of the water, 850.; the electro-magnet- G, whenactuated, imparting a rotary motion to the type wheel C in onedirection, while a motion in the opposite direction is given to the saidtype wheel at the time the other electro-magnet G is actuated by pawland ratchet mechanisms to be presentlydescribed. The electromagnets Gand G are provided with armature levers G3 and G respectively, pivotedon the upper end of the post D which also forms a support for themagnets G and G as will be readily understood by reference to Figs. 2and 3. A spring G connects the two armature levers G and G with eachother, to hold the same in a normal position; that is, out of contactwith their respective electro-magnets G and G which movement by thelevers will also hold the pawls carried thereby out of engagement withthe respective ratchet wheels as hereinafter more fully set forth. Theouter ends of the armature levers G3 and G are limited in their swingingmotion by the usual stops G and G supported on the frame earrying theclectro-magnets G and G On the armature lever G is secured atransversely extending arm J, carrying a spring-pressed pawl J see Fig.l engaging a ratchet wheel 2 secured to the outer face of the type wheel0, so that when the armature lever G is attracted by its electro-magnetG, the said spring-pressed pawl J acts on the ratchet wheel J and thusturns the type wheel 0 in the direction of the arrow a on Fig. 2. On theother armature lever G is arranged an arm J 3 carrying a spring-pressedpawl J engaging a ratchet wheel J also secured on the hub of the typewheel 0, seeFigs. 1, 3 and 9 so that when this armature lever G isattracted by its electro magnet G the said pawl J 4 actuates the ratchetwheel J so as to impart a rotary motion to the type wheel 0 in theinverse direction of the arrow a, since the teeth of the ratchet wheelsJ J are oppositely arranged.

In order to prevent the type wheel 0 from being moved too far in eitherdirection by the respective pawls and ratchet wheels above described, Iprovide the pawls J and J see Figs. 1, 2, and 9, secured rigidlyon thearms J and J respectively, projecting from the armature levers G and Grrespectively, and adapted to engage the ratchet wheels J and Jrespectively, whenever the corresponding armature lever G or G isattracted. Thus when, for instance, the armature lever G is attractedbyits magnet G, the pawl J moves the ratchet wheel J the distancebetween two teeth, and at that time the downward movement of thearmature lever G has moved the fixed pawl J in contact with the ratchetwheel J, the teeth of which stand in an opposite direction to those ofthe ratchet wheel J and hence a farther forward movement of the saidratchet wheels in the direction of the arrow at is prevented by the pawlJ engaging the ratchet wheel J. In a like manner the other fixed pawl Jengages and locks the ratchet wheel J after the pawl J has turned theratchet wheel J in the direction of the arrow a the distance between twoteeth at the time the armature lever G has been attracted by itselectro-magnet G In order to prevent the type wheel C from being shiftedaccidentally I provide the toothed wheel K engaged by a spring-pressedpawl K, see Figs. 1 and 2 the said toothed wheel having V-shaped groovesto permit the pawl to glide over the teeth in either direction in whichthe wheel may be turned, but the said pawl,bypressing on the saidratchet wheel, prevents the type wheel from being accidentally moved ineither direction owing to jars or other disturbing cause. The pawl alsoserves to finally bring the type wheel 0 into such position as to holdthe type into proper alignment for printing.

In case a danger point is reached; that is, the steam or other forcerises beyond or falls below a certain degree; then an alarm is sounded,and for this purpose the force-recording wheel 0 has secured to theouter face of its ratchet wheel J a concentric insulating disk K made ofrubber or other insulating material, and on this disk are attached twosectoral arms K and K between which is arranged a roller K j ournaled inan arm pivoted to the frame for the electro-magnets, as will be readilyunderstood by reference to Fig. 2. The roller K engages on the periphcryof the disk 1' and when the type wheel (J is turned far enough in eitherdirection the respective arm K or K' comes in contact with the saidroller K. The roller 1* is connected by the wire K with an alarm K ofany approved construction, actuated by a local battery connected by awire K with the said arms K and K at their junction in the center of theweb K The periphery of each segmental arm extends sufficiently beyondthe periphery of the nou-conducting web K to insure electrical contactwith roller K and as these segments project but slightly beyond the webK they do not prevent the further turning of type wheel C should thetemperature still continue in that direction. The width of the segmentalarms of course determines the length of time that the alarm is sounded.Now, it will be seen that when the wheel G is shifted in the directionof the arrow to to a danger point, then the arm K comes in contact withthe roller K so that the circuit for thealarm K is completed by the saidarm making connection with the roller 1'. When the type wheel C movestoo far in the inverse direction of the arrow a, then the other arm Kmoves in contact with the roller K thus again con1pleting the circuitand sounding the alarm K The arm carrying the roller K is provided witha spring K, as shown in Fig. 2, so as to hold the said roller always infrictional contact with the insulating web or disk K In order to impartan intermittent rotary motion to the time wheel B in the direction ofthe arrow to, the following device is provided, especial reference beinghad to Figs. 1, 2, 3, i and 5:On the hub of the time wheel B IIR issecured a ratchet wheelB engaged by a pawl 13 pressed on by a spring 13and fulerumed on an arm 13 having its fulcrum on the fixed shaft D, onwhich the type wheels are mounted to rotate, as previously stated. Thefree end of the arm B is pivotally connected by a link B with a lever B,fulcrumed on the bracket 13 attached to the main frame. The outer, freeend of the lever B is engaged by a friction roller L held on a crank armL attached to the main driving shaft L, mounted to turn in suitablebearings supported from the base D. A spring B pulls on the lever B soas to hold its free end in contact with the friction roller L duringpart of the revolution of the shaft L. When the latter has rotated inthe direction of the arrow Z), Fig. 4 then the crank arm L by itsfriction roller L, depresses the free end of the lever B, so that theother end of the latter swings upward and, by the link B imparts anupward swinging motion to the arm B whereby the spring -pressed pawl Bturns the ratchet wheel B and consequently the time wheel B, so as tobring the next type character thereon into the proper position fortaking the next impression at the bottom of the wheel. As soon as thefriction roller L has left the free end of the lever B, the latter atonce returns to its normal position by the action of the spring E thefree end of the said lever resting against the under side of the maindriving shaft L, see Fig. 4. hen the shaft L has made its completerevolution in the direction of the arrow 1) Fig. 4 it again stops at thetime the friction roller L again moves in contact with the top edge ofthe lever B, as shown in the said Fig. 4.

The shaft L carries a pinion E see Fig. 5, which forms one of the gearwheels of the motor gearing E actuated by a spring or weight in theusual manner, so that further description of this device is not deemednecessary, as any other suitable motor may be employed to impart arotary motion to the shaft L.

In order to impart a rotary motion to the date wheel A at everyrevolution of the time wheel B, I provide a mechanism N shown in detailin Figs. 10 and 11. This device N is provided with a pin N projectingfrom the web of the time wheel B, the said pin engaging, at everyrevolution of the wheel B, an arm N attached on a shaft N journaled in aframe N held adj ustably on a bracket D supported from the base D orother parts forming the main frame. Aset screw D permits of adjustingthe frame N so as to hold said frame and the parts thereon in the properA and B respectively, to prevent a return movement of the date and timewheels A and B. Now, when the time wheel B is given a completerevolution, then the pin N engages the arm N thus lifting the latter,and thereby causing the shaft N to turn, whereby the arm N swingsupward, and by the pawl N imparts a turning motion to the ratchet wheelA and consequently to the date wheel A. The arm N after each revolutionof the wheel B, drops off the pin N, so that the latter, as well as thearm N, returns to its lowermost position by the action of a spring Npressing on the said arm N On the downward motion of the arm N the pawlN glides over the ratchet wheel A, a return movement of which as well asof the ratchet wheel B being prevented by the pawls N and N previouslymentioned. The date wheel A is shifted by this mechanism N one tooth sothat the next following type character is brought into a lowermostposition at the bottom of the wheel for the next impression, and thischange takes place once every twenty-four hours.

In order to release the main driving shaft L at a predetermined, desiredtime, and permit it to be driven from the motor E in this case everyquarter of an hour, the following device is provided:-On the maindriving shaft L is secured an arm L adapted to be locked in position byadevice 0 shown in detail in Fig. 6. This device 0 is provided with alever 0, arranged vertically and fulcrumed on a bracket 0 attached tothe frame Work carrying the motor or gearing E. On the lower end of thislever O is arranged a pin 0 adapted to move into the path of the arm Lso as to lock the latter in position. A spring 0 holds the lever O inthis normal position, the lever resting with its upper end against theset screws 0 screwing into the bracket 0 Now, in order to disengage thepin 0 from under the free end of the arm L the upper end of the saidlever is struck every quarter of an hour bya striker P held on an arm Pcontrolled from the clockwork F. Thus, when the striker P strikesagainst the upper end of the lever O the lower end of the said leverswingsin an opposite direction, thus moving the pin 0 from under the armL so that the latter and the main shaft L are unlocked to permit themotor or gearing E to retate the said shaft, to actuate the variousmechanism connected with the shaft. The lever O is returned soon afterthe release of the arm L by the action of the spring 0" forcing theupper end of the lever back against the set screw 0". The pin 0 thenagain stands in the phat of the arm L so that when the shaft L has madea complete revolution the free end of the arm L again strikes upon thepin 0 and further rotation of the shaft is prevented. The striker arm Pis secured on a shaft P forming part of the clockwork E, which latter isprovided on its hour shaft F, see Fig. 7, with a cam wheel F formed withfour notches adapted to alternately actuate a releasing lever F foractuating the mechanism connected with the striker arm P. It will beseen that on every full revolution of the hour shaft F the cam wheel 13actuates the lever F four times, so that the striker arm P is actuatedfour times in one hour, whereby the shaft L is unlocked a like number oftimes and the other parts co-operating therewith are correspondinglymodified.

As the striker P does not have to perform any additional work to thatwhich it usually performs ina clock work viz: striking a blow at statedintervals the time keeping qualities of the clock will not be impairedthereby in the slightest degree.

If it is desired to actuate the shaft L every ten minutes instead ofevery fifteen minutes, as shown, then the number of notches in the camwheel F is increased to six, so that at every hour the six notches ofthe cam wheel actuate the lever F six times, and the striker arm P isset in motion a like number of times to strike the lever O as abovedescribed, to release the arm 0 so that the shaft L is then rotated sixtimes in one hour. If it should be desired to actuate the shaft L everyminute the cam wheel F would be provided with sixty notches. The shaft Lalso actuates the platen or impression mechanism I, which latter isprovided for this purpose with aplaten I carrying on its top a paperguide I through which passes the paper Q on which the impression is tobe made, between the two arms of the guide 1 see Figs. 2 and S. Thepaper Q is in the shape of a roll and unwinds from the reel Q to passunder a roller Q journaled on the base D, and then passing under theguide I over the platen I to receive the impression while on that partof the platen extending between the two arms of the guide 1 In order toadjust the platen I to the proper position relative to the typecharacters on the type wheels A, B, and C, the said platen is providedwith downwardly extending rods I held vertically adjustable in a bar Iby means of set screws I screwing in the said bars. By loosening the setscrews the platen can be raised or lowered so as to bring the paper inthe proper position to make a good impression on the under sides of thetype wheels. The platen I, when in a normal position,is a suitabledistance below the bottoms of the type wheels so as not to interferewith the rotation of the type wheels, as above described. In order toraise the platen when the shaft L is actuated at every quarter hour orother time, as above described, the bar I, carrying the platen, ismounted on toggle levers I pivoted at their lower ends on a bar Dattached to the base D, as will be readily understood by reference toFigs. 3 and at. The toggle levers are pivotally connected with eachother at their middle by a bar I on which pulls a spring I connectedwith the post D so as to hold the said bar I in contact at one end withthe said post D in order to hold the platen I in a lowermost position.The bar I is pivotally connected with a link R connected with an arm R,mounted to turn on a stud R held on a bracket D secured to the base D.In order to adjust the pivot end of the lever R on the arm It, the pivotR is held adj ustably in a slot in the said arm R. From the hub of thepivoted arm Rextends downward a second arm R provided on one face withan offset It, see Fig. 12, adapted to be engaged by friction rollers Ljournaled at the outer ends of a crank arm L attached to the shaft L.Thus when the latter rotates, as previously described, the crank arm Lin the course of its revolution, strikes the lug It so as to impart anoutward swinging motion to the arm R and consequently to the arm R,whereby the latter exerts an outward pull on the link R connected withthe bar I which thus is moved forward and forces an opening of thetoggle levers I ,which opening raises the platen I and thus moves thepaper in contact with the type 011 the type wheels A, B, and C, to makethe impression. Shortly before the shaft L has completed its revolution,the friction rollers L drop off the upper end of the projection oroffset R so that the toggle levers I again close by the action of thespring I pulling on the bar I until the latter abuts against the post DThis closing of the levers moves the platen I back into its normallowermost position, as before stated, to permit a further changing ofthe type wheels. It will thus be seen that the platen I is raisedsuddenly to make the impression and then at once drops back into itsnormal position, so as not to interfere with the free rotation or changeof position of the type wheels A, B, and O.

In order to ink the lowermost type of the type wheels A, B, and 0previous to making the impression as above described, the followingdevice is provided: The crank arm L previously mentioned is pivotallyconnected by a pitman S with a bar S connecting two rods S with eachother at one end, the said rods S being mounted to slide in bearings Ssecured to the posts D and D see Fig. 4. The rods S extend under thetype wheels and between the same passes the platen I. On the rods S aresecured collars S arranged opposite each other, and in which isjournaled an inking roller S adapted to travel over the inksupplying padS supported from the bar D, or other suitable support erected on thebase D. The ink-supplying pad S is arranged between the rods S in frontof the platen I, as will be readily seen by reference to Fig. 4. Whenthe shaft L is in its locked position, as shown in the said figure, theshank arm L stands outward, whereby the inking roller 8 is held in arearmost position on the pad S. Now, when the shaft L is rotated asabove mentioned, the crank arm L pushes on the pitman S, so that the barS and the rods S carrying the said inking roller 8 move outward, wherebythe said inking roller rolls on the inking pad, takes up the necessaryink, and finally passes over the lowermost type of the type wheels A, B,and O, and back again to ink the same thoroughly on the return stroke ofthe crank arm L. Then the crank arm L is on its return stroke and justprevious to engaging, with its friction rollers L, the projection R 011the arm R then the inking roller S has returned upon the pad S, andduring the remainderof the movement of the crank arm L the said inkingroller moves to a rearmost position on the pad. As soon as the crank armL moves with its friction rollers L in contact with the lugs R on thearm R the platen I is raised to make the impression on the freshly inkedtype on the bottoms of the type wheels A, B, and O.

Previous to raising the platen l to make the impression,the paper Q isfed forward and for this purpose the following feeding device T isprovided, which is actuated from the crank arm L of the shaft L:-Thepaper passes from the platen .1 between two rollers T and T of which thelarger, bottom roller T is journaled in suitable bearings fixed on abracket D supported on the base D. On the shaft of this roller T issecured a ratchet wheel T engaged by a spring-pressed pawl T fulcrumedon an arm T mounted loosely 011 the shaft of the roller T, see Fig. 13.The free end of this pivoted arm T is pivotally connected by a link Twith an arm T secured on a shaft T journaled in a suitable bearing Dattached to the post D On the shaft T is secured a second arm T-extending in the path of the friction rollers L so that when the crankarm L is on its forward stroke, the said friction rollers engage thesaid arm T and impart a downward swinging motion to the same so as toturn the shaft T thereby causing an upward swinging motion of the arm Twhich, by the link T causes an upward swinging motion of the arm T sothat the friction pawl T rotates the ratchet wheel T thus turning theroller T and thereby feeding the paper held in the said roller T and theroller T forward. The return movement of the arm T and the several partsconnected with the feed takes place after the friction rollers L dropoff the free end of the said arm T the return movement beingaccomplished by a spring T connected with the said arm T attached to abracket extending from the bearing B, see Figs. 3 and at. It will beseen that this forward feeding of the paper takes place at the time theinking of the type on the type wheel occurs, but previous to theraisingof the platen, as before described.

In order to hold the top roller T in contact with the paper passingbetween the rollers so as to properly feed the paper forward, I providebearings U for the said roller T which are mounted to slide verticallyin grooves arranged in the upper end of bracket D The ends of thebearings U are pressed down by a spring U attached at its middle to across bar U connecting the upper ends of the two side bars of thebracket D. It will be seen that the spring plate U presses the bearingsU down so as to press the paper into sutlicient frictional contact withthe large roller T to cause the forward feeding of the paper when theroller T is revolved, as above described.

The transmitter H, illustrated in Fig. 15, is provided with a pointer H,which is under the influence of the force or agent the state of which isto be recorded by the instrument. The pointer H is securely attached ona shaft V passing through a fixed sleeve on which retates loosely anon-conducting plate V carrying contact points V and V insulated fromeach other and adapted to be engaged by contacts H and l'l on the saidpointer H. W hen the pointer H is deflected in the direction of thearrow 0, then the contact H moves in contact with the contact point Vand when the said pointer is deflected in the inverse direction of thearrow 0, then the contact point H moves in contact with the point V Inorder to immediately break the contact between the contact points V Habove mentioned, the following device is provided: The plate V carries aratchet wheel V engaged by a spring-pressed pawl V held on the armaturelever XV of an electro-magnet \V, which when attracting the saidarmature lever, causes the pawl V to turn the wheel V so as to turn theplate V in the inverse direction of arrow 0, thus moving the plate V outof contact by its contact pointV with the contact point H of the pointerH. In order to break the contact between the points H and V a secondratchet wheel V having its teeth standing in an opposite direction tothat of ratchet wheel V is secured on plate V and engaged by aspring-pressed pawl held 011 an armature lever of an electromagnet TVwhich when attracting the said armature lever V causes its pawl V toturn the ratchet wheel V and consequently the plate V so as to move theplate V in the direction of the arrow 0, and consequently the contactpoint V out of contact with the point H In order to hold the shaftVin anormal position; that is, the contact points V and V out of engagementwith the respective contact points H and H, a notched wheel V isprovided secured on the plate V and engaged by a spring-pressed pawl Vhaving a V- shaped tooth, so as to permit of rotating the plate V ineither direction when the wheels V and V are actuated by theirspring-pressed pawls. Vhen the magnets \V and V are not vitalized theirpawls V and V respectively held on the armatures, are out of contactwith their respective ratchet wheels V and V, the pawl V always pressingits ratchet wheel V thus holding plate V in its normal position andpreventing any jar from throwing plate V out of position.

The action of the armature levers V, W

and their pawls V V on the ratchet wheels V" V and the action of pawl Von ratchet wheel V corresponds exactly with the action of the levers G Gand their pa'wls J J upon ratchet wheels J and J and of the pawl K onwheel K. The three ratchet wheels V V Y are connected to the turn tableor plate V for operating it just as are the ratchet wheels J J and K tothe wheel and all of the said ratchet wheels are of the same size andhave the same number of teeth.

The locking pawls W" on the levers lV W correspond in action with thepawls J J of armature levers G G.

The electro-magnets W and W are connected by the wires and with abinding post W, connected with a local battery W connected with abinding post connected with armatures Y and Y The binding post WV isalso connected with the electro-magnets X and X, connected with contactpoints V and V respectively, as is plainly shown in the drawings Fig.15. The electromagnets X and X are adapted to attract theinsulated endsfand X of an armature lever X fulcrumed at the middle so that when oneend is moved in contact with its respeetive electro-magnet, the otherend moves farther away from its electro-magnet. On the end X of thearmature lever X for the electromagnets X and X, is secured a contactscrew X" adapted to make contact on a point X at the time the end X isattracted by its magnet X, the said contact point X being connected witha binding post X connected by a wire Z with the electro-magnets G G ofthe receiver, as hereinafter more fully described. The other arm X ofthe armature lever X carries a contact screw X adapted to make contacton a point X at the time the electro-magnet X attracts the end X Thiscontact point X is also connected with the binding post X as shown. Onthe ends X and X of the armature lever X are secured the contact screwsY and Y respectively, adapted to make contact on the springs Y and Yrespectively, connected wi h the electro-magnets Y and Y respectively,adapted to attract the armature levers Y and Y respectively, connectedwith the binding post W as shown. The electro-magnets Y" and Y areconnected with the ground G. The contact screws Y and Y are arranged insuch a manner that when the lever end X is attracted by its magnet X,then the contact screw Y on the other end X makes contact with thespring plate Y and when this end X is attracted by its magnet X, thenthe other contact screw Y makes contact with the spring plate Y The endsX and X of the armaturclever Xare connected with the negative andpositive poles respectively of the battery X by wires X X; see Fig. 15.The electro-magnets G and G are connected with the ground in the usualmanner.

The operation is as follows: When the pointer 11 is influenced so as todeflect in the direction of the arrow 0, then the point I'I makescontact with the point V whereby a local circuit is established from thebattery V and the electro-magnet X to attract the end X of the armaturelever X. By doing so the end X makes contact with its screw X" on thepoint X so that a positive current of electricity is sent from thebattery X to the line Z, and from the latter by the wire Z to thenegative pole of the battery Z", so that the set of magnets G attracttheir armature lever G to cause the turning of the wheel C in thedirection of the arrow a, as before (leseribed. Just previous to the endX of the lever X making contact with its screw X on the point X theopposite end X of the armature X comes in contact with the spring plateY which will give or spring back sufticiently to permitthe armature endX to make contact with its screw X". The object of these spring plates Yand Y is to insure the connection through the magnets Y or Y at the timethe opposite end of the armature comes in contact with the fixed pointofcontact. Should one end of the armature reach the fixed contact pointbefore the opposite end reaches the spring plate, then there could be noconnection made. After this contact has been made the other end X of thearmature lever X" makes contact with its set screw Y and the plate Y soas to complete the circuit of the battery X by way of the magnet Y,which latter thus attracts its lever Y and the local circuit isestablished as soon as the lever Y touches the contact point Y Thiscircuit of the local battery passes through the electro-magnet W therebyattracting the lever so as to cause the pawl V to act on the ratchetwheel V, to turn the plate V in the direction of the arrow 0, thusmoving the contact point V out of contact with the point H on thepointer H. The current is thus broken and the pulsation to theelectro-magnets G ceases. \Vhen the pointer ll is influenced in theinverse direction of thearrow c, then contact is made between the pointsH and V and the above described operation is repeated, with thedifference, however, that a negative pulsation is sent to the line Z,which negative pulsation passes through the wire Z to the positive poleof the battery Z connected with one set of the electro-magncts G whichattract their armature levers ll so as to rotate the wheel 0 in theinverse direction of the arrow a, as above described.

The batteries Z and Z" must be sufficiently small or weak so as not toovercome the resistance of the earth between the two ground wires at therecorder, for were these batteries of sufficient strength to overcomethe earths resistance between the ground wires, then a short circuitwould be established through both magnets G and G causing theirrespective armatures to continue to act on the force recording typewheel 0.

It is understood that the action of the transmitter changes, by means ofthe sets of elec- IIO tro-magnets G and G the position of the type wheel0 according to the state of the force or agent to be measured, so thatthe corresponding degrees of temperature, or pressure in pounds, orotherwise is then at the bottom of the wheel in aligment with the exacttime indicated by the time wheel and with the day indicated by the datewheel. Thus, when the next impression is made, as before described, thematter printed on the paper Q indicates the day, the time, and the stateof the agent at that time. Thus it will be seen that a complete recordfor any desired length of time is kept of the doings or changes whichtake place in the agent under observation.

When it is desired to record from two or more agents or forces,additional type wheels may be added and placed on the same shaft, eachtype wheel so added being controlled independently of the others, andhave the electric connections with the transmitter. hen this is done(using more than one temperature wheel) it would be advisable to operatethem from ratchet wheels working in the type wheels, at their edges, sothat the type wheels may be placed as close to each other as possibleand using the same paper to print on. In this arrangement the magnetsfor each wheel can be so distributed around the wheels as to permit thetype wheels to be placed side by side.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent 1. Arecording-receiver, comprising awheel, forrecording the state of the force or agent electro magnets for turningthe wheel in opposite directions and controlled by the variations ofsaid force or agent, a time wheel, a motor for rotating the time wheel,a separate and independent time mechanism or clock work, a releasingmechanism operated from said time mechanism at regular intervals topermit the motor to turn the time wheel, a date wheel operated from thetime wheel, and means for making an impression from the said threewheels, substantially as described.

2. A recording receiver, comprising a wheel for recording the state ofthe force or agent, electro magnets for turning the wheels in oppositedirections and controlled by the variations of said force or agent, atime wheel a main shaft a motor for operating the main shaft, a time orclock mechanism separate and independent of said motor for releasing themain shaft at stated intervals for operation by said motor, a date wheeloperated from the time wheel, an impression or platen mechanism to makean impression from said three wheels, and operative connections betweenthe main shaft and the time wheel and impression mechanism,substantially as described.

3. The combination with the force recording wheel, of electro magnets,pawl and ratchet mechanisms connected with the said wheel to turn it inopposite directions and operated from the armatures of the said magnets,insulated arms secured to said wheel, a contact in the path of botharms, an electrical circuit completed by the engagement of either ofsaid arms with the said contact, and an alarm in the said circuit,substantially as described.

a. The combination with the force-recording wheel and the electromagnets and pawl and ratchet mechanisms for operating it, of the diskconcentric with the said wheel, and turning therewith and formed ofinsulating material, the sectoral arms carried by the disk. with theirouter ends at the periphery of the disk, a yielding contact engaging theperiphery of the disk to engage the outer ends of said arms, and anelectric circuit containing an alarm and completed by the engagement ofeither of the arms with said contact, substantially as described.

5. The combination with the force recording wheel and the electro magnetand pawl and ratchet mechanisms for operating the wheel, of a disk ofinsulating material concentric with and turning with said force wheel,sectoral arms mounted on the disk with their outer ends at the peripheryof the disk, a spring pressed contact wheel bearing on the periphery ofthe disk, and an electric alarm the circuit of which is completed byeither of the arms contacting with said wheel, substantially asdescribed.

6. The combination with the force wheel having two ratchet wheelsprovided with oppositely projecting teeth, of armatures controlled fromthe force or agent being recorded, oppositely projecting armature leverseach provided at its outer end with apivoted and a rigidly secured pawlthe rigid pawl of one lever engaging the same ratchet as the pivotedpawl of the opposite lever, substantially as described.

7. In a telemeter, the combination with a transmitter, and sets ofelectro-magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuuated from the said electro-magnets and provided with typecharacters for indicatingthe state of the agent controllingthetransmitter, a time wheel arranged alongside the said type wheel, and animpression or platen mechanism for makingimpressions from the typecharacters of the said wheels, substantially as shown and described.

8. In a telemeter, the combination with a transmitter and sets ofelectro magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-1naguets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, animpression or platen mechanism for making impressions from the typecharacters of the said wheels, and a clockwork for c011- trolling thesaid time wheel, substantially as shown and described.

9. In a telemeter, the combination with a transmitter and sets ofelectro-magnets controlled from the said transmitter, according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, animpression or platen mechanism for making impressions from the typecharacters of the said wheels, a spring actuated gearing for operatingthe said time wheel and the said impression or platen mechanism, and aclockwork for controlling the said spring actuated gearing,substantially as shown and described.

10. In a telemeter, the combination with a transmitter and sets ofelectro-magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, a datewheel controlled from the said time wheel, and an impression or platenmech anism for making impressions from the type characters of the saidwheels, substantially as shown and described.

11. In a telemeter, the combination with a transmitter and sets ofelectro-magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, a datewheel controlled from the said time wheel, an impression or platenmechanism for making impressions from the type characters of the saidwheels, and a springactuated gearing for imparting movement to the saidtime wheel and the said printing mechanism, substantially as shown anddescribed.

12. In a telemeter, the combination with a transmitter and sets ofelectro-magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the. said type wheel, adate wheel controlled from the said time wheel, an impression or platenmechanism for making impressions from the type characters of the saidwheels, a motor or spring-actuated gearing for imparting movement to thesaid time wheel and the said impression or platen mechanism, and a paperfeed actuated from the said motor or springeeaeio actuated gearing andadapted to feed the paper over the platen of the said impression orplaten mechanism, substantially as shown and described.

13. In a telemeter, the combination with a transmitter and sets ofelectro-magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, a datewheel controlled from the said time wheel, an impression or platenmechanism for making impressions from the type characters of the saidwheels, a motor or spring-actuated gearing for imparting movement to thesaid time wheel and the said impression or platen mechanism, a paperfeed actuated from the said motor or spring-actuated gearing and adaptedto feed the paper over the platen of the said impression or platenmechanism, and a clockwork for controlling the movement of the saidspring-actuated gearing, substantially as shown and described.

14. In a telemeter, the combination with a transmitter and sets ofelectro-magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, a datewheel controlled from the said time wheel, an impression or platenmechanism for making impressions from the type characters of the saidwheels, a shaft having an intermittent rotary motion according to thepredetermined time, intermediate mechanism for connecting the said shaftwith the said date wheel to shift the latter at every revolution of thesaid shaft, and intermediate mechanism for connecting the said shaftwith the impression or platen mechanism to actuate the latter,substantially as shown and described.

15. In a telemeter, the combination with a transmitter and sets ofelectro magnets controlled from the said transmitter according to thepositive and negative pulsations sent to the said magnets, of a typewheel actuated from the said electro-magnets and provided with typecharacters for indicating the state of the agent controlling thetransmitter, a time wheel arranged alongside the said type wheel, a datewheel controlled from the said time wheel, an impression or platenmechanism for making impressions from the type characters of the saidwheels, a shaft having an intermittent rotary motion according to thepredetermined time, intermediate mechanism for connecting the said shaftwith the said date wheel to shift the latter at every revolution of thesaid shaft, intermediate mechanism for connecting the said shaft withthe impression or platen mechanism to actuate the latter, and a paperfeed actuated from the said shaft to feed the paper previous to makingan impression from the type wheels, substantially as shown anddescribed.

16. In arecording receiver, the combination with a date wheel and a timewheel controlling the motion of the said date wheel, of a shaft havingan intermittent rotary motion, an intermediate mechanism for connectingthe said shaft with the said time wheel to actuate the latter, a motoror spring-actuated gearing for imparting a rotary motion to the saidshaft, a locking device for the said shaft, and a clockwork for trippingthe said shaft locking mechanism to permit the motor or spring-actuatedgearing to rotate the shaft at stated intervals, substantially as shownand described.

17. In arecording receiver, the combination with a motor orspring-actuated gearing and a main driving shaft operated from the saidgearing, of an arm held on the said shaft, a locking lever having a pinengaging the said arm to lock the shaft in place, a tripping device fordisconnecting the said lever and arm, and a clockwork actuating the saidtripping device at predetermined intervals, substantially as shown anddescribed.

18. A recording receiver, comprising a forcerecording type wheel,controlled from the force or agent to be recorded, a time type wheel anda date type wheel controlled from the time wheel and a motor operatingthe time wheel at regular intervals and an impression mechanism alsooperated from said motor whenever the time wheel is operated, andcomprising a platen movable toward and from the three wheels to carrythe paper thereagainst, a toggle joint for operating the said platen,and a power connection for operating the toggle joint from the motor,substantially as described.

19. A recording receiver, comprising a forcerecording type wheelcontrolled from the force or agent to be recorded, a time type wheel, adate type wheel operated therefrom, a main driving shaft operating thetime wheel and operated at regular intervals, a time controlled motorfor said shaft, a platen having an op erating toggle mechanism actuatedfrom said main shaft, and an inking mechanism also actuated from themain shaft and including a sliding frame provided with the inking rollerfor inking the type on said wheels, substantially as described.

20. Arecording receiver,comprising aforcerecording type wheel controlledfrom the force or agent to be recorded, a main drive shaft, a timecontrolled motor, for actuating the shaft at regular intervals, a datewheel, a time wheel operated from the main shaft and actuating the datewheel, a platen movable toward and from the type wheel, a paper feedingmechanism and an inking mechanism and operative connections between themain shaft, the

platen and feeding and inking mechanisms for operating them in properorder, substantially as described.

21. In a recording receiver, the combination with a driving shaft havingan intermittent rotary motion at stated intervals, and the type wheelactuated therefrom of a crank arm held on the said shaft and providedwith friction rollers, an arm mounted to swing and provided with a lugadapted to be engaged by the friction rollers of the said crank arm, asecond arm held on the shaft of the first named arm, a link pivotallyconnected with the said second arm, a bar pivotally connected with thesaid link, toggle levers connected with the said bar, and a platensupported on the said toggle levers, and movable thereby toward and fromthe said type wheel substantially as shown and described.

22. In a recording receiver, the combination with a driving shaft havingan intermittent rotary motion at stated intervals, and the type wheelsfor respectively recording the variations in the force or agent, thetime and the date, and connections between the time wheel and the saidshaft, of a crank arm held on the said shaft and provided with frictionrollers, an arm mounted to swing and provided with a lug adapted to beengaged by the friction rollers of the said crank arm, a second arm heldon the shaft of the first named arm, a link pivotally connected with thesaid second arm, a bar pivotally connected with the said link, togglelevers connected with the said bar, a platen supported 011 the saidtoggle levers, and means, substantially as described, for verticallyadjusting the said platen on the toggle levers, as set forth.

23. In a recording receiver, the combination with a driving shaft havingan intermittent rotary motion at stated intervals of a crank arm held onthe said shaft and provided withfriction rollers, an arm mounted toswing and provided with a lug adapted to be engaged by the frictionrollers of the said crank arm, a second arm held on the shaft of thefirst named arm, a link pivotally connected with the said second arm,abarpivotally connected with the said link, toggle levers connected withthe said bar, a platen supported on the said toggle levers, and a paperguide held on the said platen and under which passes the paper,substantially as shown and described.

24. In a telemeter a transmitter comprising a pointer under the controlof the agent and provided with contact points, at opposite sides of itsaxis a plate concentric with the pointer, adapted to turn in oppositedirections and carrying contact points at opposite sides of its axisadapted to be engaged and disengaged by the contact points of the saidpointer, electro-magnets controlling spring pawls for shifting the saidplate, and electro-magnets controlling the insulated ends of an armaturelever for sending positive and negative pulsations through the line,substantially as shown and described.

IIO

I0 ing positive and negative pulsations through the line, and a circuitbreaker controlled from a local battery to disengage the said plate andits contact points from the contact points of the pointer, substantiallyas shown and described.

JOI-IN T. TODD.

lVitnesses:

SCOTT BURGETT, GEO. O. Moonn.

